20075440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3259}}^1$

素因数の和:3290

約数の個数: 80

約数和(自身を含む): 58210560

約数和(自身を除く): 38135120

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 3259, 6160, 6518, 13036, 16295, 22813, 26072, 32590, 35849, 45626, 52144, 65180, 71698, 91252, 114065, 130360, 143396, 179245, 182504, 228130, 250943, 260720, 286792, 358490, 365008, 456260, 501886, 573584, 716980, 912520, 1003772, 1254715, 1433960, 1825040, 2007544, 2509430, 2867920, 4015088, 5018860, 10037720, 20075440]

約数ペア:

[(1, 20075440), (2, 10037720), (4, 5018860), (5, 4015088), (7, 2867920), (8, 2509430), (10, 2007544), (11, 1825040), (14, 1433960), (16, 1254715), (20, 1003772), (22, 912520), (28, 716980), (35, 573584), (40, 501886), (44, 456260), (55, 365008), (56, 358490), (70, 286792), (77, 260720), (80, 250943), (88, 228130), (110, 182504), (112, 179245), (140, 143396), (154, 130360), (176, 114065), (220, 91252), (280, 71698), (308, 65180), (385, 52144), (440, 45626), (560, 35849), (616, 32590), (770, 26072), (880, 22813), (1232, 16295), (1540, 13036), (3080, 6518), (3259, 6160)]